diff --git a/basilisk/basilisk_swap.c b/basilisk/basilisk_swap.c
index bc958e1b6..43fdd680e 100755
--- a/basilisk/basilisk_swap.c
+++ b/basilisk/basilisk_swap.c
@@ -181,7 +181,7 @@ bits256 basilisk_swap_broadcast(char *name,struct supernet_info *myinfo,struct b
     return(txid);
 }
 
-int32_t basilisk_rawtx_sign(struct supernet_info *myinfo,struct basilisk_swap *swap,struct basilisk_rawtx *dest,struct basilisk_rawtx *rawtx,bits256 privkey,bits256 *privkey2,uint8_t *userdata,int32_t userdatalen)
+int32_t basilisk_rawtx_sign(struct supernet_info *myinfo,int32_t height,struct basilisk_swap *swap,struct basilisk_rawtx *dest,struct basilisk_rawtx *rawtx,bits256 privkey,bits256 *privkey2,uint8_t *userdata,int32_t userdatalen)
 {
     char *rawtxbytes,*signedtx,hexstr[999],wifstr[128]; cJSON *txobj,*vins,*item,*sobj,*privkeys; int32_t retval = -1; struct vin_info V; uint32_t locktime=0;
     memset(&V,0,sizeof(V));
@@ -239,7 +239,7 @@ int32_t basilisk_rawtx_sign(struct supernet_info *myinfo,struct basilisk_swap *s
     if ( (rawtxbytes= bitcoin_json2hex(myinfo,rawtx->coin,&dest->txid,txobj,&V)) != 0 )
     {
         printf("(%s) spend.%s rawtx.(%s) userdatalen.%d p2shlen.%d\n",jprint(txobj,0),rawtx->name,rawtxbytes,userdatalen,dest->redeemlen);
-        if ( (signedtx= iguana_signrawtx(myinfo,rawtx->coin,&dest->signedtxid,&dest->completed,vins,rawtxbytes,privkeys,&V)) != 0 )
+        if ( (signedtx= iguana_signrawtx(myinfo,rawtx->coin,height,&dest->signedtxid,&dest->completed,vins,rawtxbytes,privkeys,&V)) != 0 )
         {
             printf("rawtx spend signedtx.(%s)\n",signedtx);
             dest->datalen = (int32_t)strlen(signedtx) >> 1;
@@ -274,7 +274,7 @@ int32_t basilisk_verify_otherfee(struct supernet_info *myinfo,struct basilisk_sw
     return(0);
 }
 
-int32_t basilisk_rawtx_spendscript(struct supernet_info *myinfo,struct basilisk_rawtx *rawtx,int32_t v,uint8_t *data,int32_t datalen,int32_t suppress_pubkeys)
+int32_t basilisk_rawtx_spendscript(struct supernet_info *myinfo,int32_t height,struct basilisk_rawtx *rawtx,int32_t v,uint8_t *data,int32_t datalen,int32_t suppress_pubkeys)
 {
     int32_t retval=-1,hexlen,n; cJSON *txobj,*skey,*vouts,*vout; char *hexstr;
     if ( rawtx->txbytes == 0 )
@@ -288,7 +288,7 @@ int32_t basilisk_rawtx_spendscript(struct supernet_info *myinfo,struct basilisk_
         printf("%s rawtx data compare error, len %d vs %d\n",rawtx->name,rawtx->datalen,datalen);
         return(-1);
     }
-    if ( (txobj= bitcoin_data2json(rawtx->coin,&rawtx->signedtxid,&rawtx->msgtx,rawtx->extraspace,sizeof(rawtx->extraspace),rawtx->txbytes,rawtx->datalen,0,suppress_pubkeys)) != 0 )
+    if ( (txobj= bitcoin_data2json(rawtx->coin,height,&rawtx->signedtxid,&rawtx->msgtx,rawtx->extraspace,sizeof(rawtx->extraspace),rawtx->txbytes,rawtx->datalen,0,suppress_pubkeys)) != 0 )
     {
         rawtx->actualtxid = rawtx->signedtxid;
         char str[65]; printf("got txid.%s\n",bits256_str(str,rawtx->signedtxid));
@@ -314,10 +314,10 @@ int32_t basilisk_rawtx_spendscript(struct supernet_info *myinfo,struct basilisk_
 int32_t basilisk_verify_bobdeposit(struct supernet_info *myinfo,struct basilisk_swap *swap,uint8_t *data,int32_t datalen)
 {
     uint8_t userdata[512]; int32_t len = 0;
-    if ( basilisk_rawtx_spendscript(myinfo,&swap->bobdeposit,0,data,datalen,0) == 0 )
+    if ( basilisk_rawtx_spendscript(myinfo,swap->bobcoin->blocks.hwmchain.height,&swap->bobdeposit,0,data,datalen,0) == 0 )
     {
         userdata[len++] = 0x51; // true -> if path
-        return(basilisk_rawtx_sign(myinfo,swap,&swap->aliceclaim,&swap->bobdeposit,swap->myprivs[0],0,userdata,len));
+        return(basilisk_rawtx_sign(myinfo,swap->bobcoin->blocks.hwmchain.height,swap,&swap->aliceclaim,&swap->bobdeposit,swap->myprivs[0],0,userdata,len));
     }
     printf("error with bobdeposit\n");
     return(-1);
@@ -331,7 +331,7 @@ int32_t basilisk_bobdeposit_refund(struct supernet_info *myinfo,struct basilisk_
     for (i=0; i<sizeof(swap->privBn); i++)
         userdata[len++] = swap->privBn.bytes[sizeof(swap->privBn) - 1 - i];
     userdata[len++] = 0; // false -> else path
-    return(basilisk_rawtx_sign(myinfo,swap,&swap->bobrefund,&swap->bobdeposit,swap->myprivs[0],0,userdata,len));
+    return(basilisk_rawtx_sign(myinfo,swap->bobcoin->blocks.hwmchain.height,swap,&swap->bobrefund,&swap->bobdeposit,swap->myprivs[0],0,userdata,len));
 }
 
 int32_t basilisk_bobpayment_reclaim(struct supernet_info *myinfo,struct basilisk_swap *swap)
@@ -339,13 +339,13 @@ int32_t basilisk_bobpayment_reclaim(struct supernet_info *myinfo,struct basilisk
     uint8_t userdata[512]; int32_t len = 0;
     printf("basilisk_bobpayment_reclaim\n");
     userdata[len++] = 0x51; // true -> if path
-    return(basilisk_rawtx_sign(myinfo,swap,&swap->bobreclaim,&swap->bobpayment,swap->myprivs[1],0,userdata,len));
+    return(basilisk_rawtx_sign(myinfo,swap->bobcoin->blocks.hwmchain.height,swap,&swap->bobreclaim,&swap->bobpayment,swap->myprivs[1],0,userdata,len));
 }
 
 int32_t basilisk_verify_bobpaid(struct supernet_info *myinfo,struct basilisk_swap *swap,uint8_t *data,int32_t datalen)
 {
     uint8_t userdata[512]; int32_t i,len = 0;
-    if ( basilisk_rawtx_spendscript(myinfo,&swap->bobpayment,0,data,datalen,0) == 0 )
+    if ( basilisk_rawtx_spendscript(myinfo,swap->bobcoin->blocks.hwmchain.height,&swap->bobpayment,0,data,datalen,0) == 0 )
     {
         // OP_HASH160 <hash(alice_privM)> OP_EQUALVERIFY <alice_pubA0> OP_CHECKSIG
         userdata[len++] = sizeof(swap->privAm);
@@ -353,19 +353,19 @@ int32_t basilisk_verify_bobpaid(struct supernet_info *myinfo,struct basilisk_swa
             userdata[len++] = swap->privAm.bytes[sizeof(swap->privAm) - 1 - i];
         userdata[len++] = 0; // false -> else path
         char str[65]; printf("bobpaid.(%s)\n",bits256_str(str,swap->privAm));
-        return(basilisk_rawtx_sign(myinfo,swap,&swap->alicespend,&swap->bobpayment,swap->myprivs[0],0,userdata,len));
+        return(basilisk_rawtx_sign(myinfo,swap->bobcoin->blocks.hwmchain.height,swap,&swap->alicespend,&swap->bobpayment,swap->myprivs[0],0,userdata,len));
     } else return(-1);
 }
 
 int32_t basilisk_alicepayment_spend(struct supernet_info *myinfo,struct basilisk_swap *swap,struct basilisk_rawtx *dest)
 {
     printf("alicepayment_spend\n");
-    return(basilisk_rawtx_sign(myinfo,swap,dest,&swap->alicepayment,swap->privAm,&swap->privBn,0,0));
+    return(basilisk_rawtx_sign(myinfo,swap->alicecoin->blocks.hwmchain.height,swap,dest,&swap->alicepayment,swap->privAm,&swap->privBn,0,0));
 }
 
 int32_t basilisk_verify_alicepaid(struct supernet_info *myinfo,struct basilisk_swap *swap,uint8_t *data,int32_t datalen)
 {
-    if ( basilisk_rawtx_spendscript(myinfo,&swap->alicepayment,0,data,datalen,0) == 0 )
+    if ( basilisk_rawtx_spendscript(myinfo,swap->alicecoin->blocks.hwmchain.height,&swap->alicepayment,0,data,datalen,0) == 0 )
         return(0);
     else return(-1);
 }
@@ -513,12 +513,12 @@ int32_t instantdex_pubkeyargs(struct supernet_info *myinfo,struct basilisk_swap
     return(n);
 }
 
-int32_t basilisk_rawtx_return(struct supernet_info *myinfo,struct basilisk_rawtx *rawtx,cJSON *item,cJSON *privkeyarray,int32_t lockinputs)
+int32_t basilisk_rawtx_return(struct supernet_info *myinfo,int32_t height,struct basilisk_rawtx *rawtx,cJSON *item,cJSON *privkeyarray,int32_t lockinputs)
 {
     char *signedtx,*txbytes; cJSON *vins; int32_t i,n,retval = -1;
     if ( (txbytes= jstr(item,"rawtx")) != 0 && (vins= jobj(item,"vins")) != 0 )
     {
-        if ( (signedtx= iguana_signrawtx(myinfo,rawtx->coin,&rawtx->signedtxid,&rawtx->completed,vins,txbytes,privkeyarray,0)) != 0 )
+        if ( (signedtx= iguana_signrawtx(myinfo,rawtx->coin,height,&rawtx->signedtxid,&rawtx->completed,vins,txbytes,privkeyarray,0)) != 0 )
         {
             if ( lockinputs != 0 )
             {
@@ -595,10 +595,10 @@ int32_t basilisk_rawtx_gen(char *str,struct supernet_info *myinfo,int32_t iambob
                 n = cJSON_GetArraySize(retarray);
                 for (i=0; i<n; i++)
                 {
-                    if ( (retval= basilisk_rawtx_return(myinfo,rawtx,jitem(retarray,i),privkeyarray,lockinputs)) == 0 )
+                    if ( (retval= basilisk_rawtx_return(myinfo,rawtx->coin->blocks.hwmchain.height,rawtx,jitem(retarray,i),privkeyarray,lockinputs)) == 0 )
                         break;
                 }
-            } else retval = basilisk_rawtx_return(myinfo,rawtx,retarray,privkeyarray,lockinputs);
+            } else retval = basilisk_rawtx_return(myinfo,rawtx->coin->blocks.hwmchain.height,rawtx,retarray,privkeyarray,lockinputs);
             free(retarray);
         } else printf("error parsing.(%s)\n",retstr);
         free(retstr);
diff --git a/gecko/gecko_mempool.c b/gecko/gecko_mempool.c
index 910b3ff02..6b118b7c1 100755
--- a/gecko/gecko_mempool.c
+++ b/gecko/gecko_mempool.c
@@ -137,11 +137,11 @@ struct gecko_memtx *gecko_unspentfind(struct gecko_memtx ***ptrpp,struct iguana_
     return(0);
 }
 
-struct gecko_memtx *gecko_mempool_txadd(struct supernet_info *myinfo,struct iguana_info *virt,char *rawtx,uint32_t senderbits,int32_t suppress_pubkeys)
+struct gecko_memtx *gecko_mempool_txadd(struct supernet_info *myinfo,struct iguana_info *virt,int32_t height,char *rawtx,uint32_t senderbits,int32_t suppress_pubkeys)
 {
     struct gecko_memtx *spentmemtx,**ptrp,*memtx = 0; uint8_t *extraspace; char *str; struct iguana_msgtx msgtx; int32_t i,len,extralen = 65536; cJSON *retjson; int64_t value;
     extraspace = calloc(1,extralen);
-    if ( (str= iguana_validaterawtx(myinfo,virt,&msgtx,extraspace,extralen,rawtx,1,suppress_pubkeys)) != 0 )
+    if ( (str= iguana_validaterawtx(myinfo,virt,height,&msgtx,extraspace,extralen,rawtx,1,suppress_pubkeys)) != 0 )
     {
         if ( (retjson= cJSON_Parse(str)) != 0 )
         {
@@ -261,7 +261,7 @@ char *gecko_txarrived(struct supernet_info *myinfo,struct iguana_info *virt,char
         pool = virt->mempool = gecko_mempool_alloc(0);
     rawtx = calloc(1,datalen*2 + 1);
     init_hexbytes_noT(rawtx,serialized,datalen);
-    if ( (memtx= gecko_mempool_txadd(myinfo,virt,rawtx,(uint32_t)calc_ipbits(remoteaddr),0)) != 0 )
+    if ( (memtx= gecko_mempool_txadd(myinfo,virt,virt->blocks.hwmchain.height,rawtx,(uint32_t)calc_ipbits(remoteaddr),0)) != 0 )
     {
         for (i=0; i<pool->numtx; i++)
         {
diff --git a/iguana/iguana777.h b/iguana/iguana777.h
index a4bd359c7..776773a13 100755
--- a/iguana/iguana777.h
+++ b/iguana/iguana777.h
@@ -16,6 +16,13 @@
 #ifndef iguana777_net_h
 #define iguana777_net_h
 
+//#define BTC2_VERSION
+#define BTC2_HARDFORK_HEIGHT 444444
+#define BTC2_SIGHASH_FORKID 0xcf
+#define BTC2_NETMAGIC 0xaabbccdd
+#define BTC2_DEFAULT_PORT 8222
+#define BTC2_DIFF_WINDOW 60
+
 struct supernet_info;
 struct exchange_info;
 
diff --git a/iguana/iguana_msg.c b/iguana/iguana_msg.c
index 74ce85fd0..b2992d8cb 100755
--- a/iguana/iguana_msg.c
+++ b/iguana/iguana_msg.c
@@ -658,12 +658,12 @@ char *iguana_txscan(struct iguana_info *coin,cJSON *json,uint8_t *data,int32_t r
     iguana_blockconv(coin->chain->zcash,coin->chain->auxpow,block,&msg,hash2,-1);
     for (i=0; i<msg.txn_count; i++)
     {
-        if ( (n= iguana_rwmsgtx(coin,0,0,&data[len],recvlen - len,&tx,&tx.txid,vpnstr,extraspace,extralen,0,0)) < 0 )
+        if ( (n= iguana_rwmsgtx(coin,coin->blocks.hwmchain.height,0,0,&data[len],recvlen - len,&tx,&tx.txid,vpnstr,extraspace,extralen,0,0)) < 0 )
             break;
         char str[65]; printf("%d of %d: %s len.%d\n",i,msg.txn_count,bits256_str(str,tx.txid),len);
         if ( bits256_cmp(txid,tx.txid) == 0 )
         {
-            if ( (n= iguana_rwmsgtx(coin,0,json,&data[len],recvlen - len,&tx,&tx.txid,vpnstr,extraspace,extralen,0,0)) > 0 )
+            if ( (n= iguana_rwmsgtx(coin,coin->blocks.hwmchain.height,0,json,&data[len],recvlen - len,&tx,&tx.txid,vpnstr,extraspace,extralen,0,0)) > 0 )
             {
                 txbytes = malloc(n*2+1);
                 init_hexbytes_noT(txbytes,&data[len],n);
diff --git a/iguana/iguana_payments.c b/iguana/iguana_payments.c
index 55dfcb952..832041952 100755
--- a/iguana/iguana_payments.c
+++ b/iguana/iguana_payments.c
@@ -300,7 +300,7 @@ cJSON *iguana_inputsjson(struct supernet_info *myinfo,struct iguana_info *coin,i
     return(vins);
 }
 
-char *iguana_signrawtx(struct supernet_info *myinfo,struct iguana_info *coin,bits256 *signedtxidp,int32_t *completedp,cJSON *vins,char *rawtx,cJSON *privkeys,struct vin_info *V)
+char *iguana_signrawtx(struct supernet_info *myinfo,struct iguana_info *coin,int32_t height,bits256 *signedtxidp,int32_t *completedp,cJSON *vins,char *rawtx,cJSON *privkeys,struct vin_info *V)
 {
     char *signedtx = 0; struct iguana_msgtx msgtx; int32_t numinputs,flagV = 0,flag = 0;
     *completedp = 0;
@@ -314,7 +314,7 @@ char *iguana_signrawtx(struct supernet_info *myinfo,struct iguana_info *coin,bit
         printf("SIGN.(%s) priv.(%s) %llx %llx\n",jprint(vins,0),jprint(privkeys,0),(long long)V->signers[0].privkey.txid,(long long)V->signers[1].privkey.txid);
         if ( V != 0 )
         {
-            if ( iguana_signrawtransaction(myinfo,coin,&msgtx,&signedtx,signedtxidp,V,numinputs,rawtx,vins,privkeys) > 0 )
+            if ( iguana_signrawtransaction(myinfo,coin,height,&msgtx,&signedtx,signedtxidp,V,numinputs,rawtx,vins,privkeys) > 0 )
                 *completedp = 1;
             else printf("signrawtransaction incomplete\n");
             if ( flagV != 0 )
@@ -474,14 +474,14 @@ char *sendtoaddress(struct supernet_info *myinfo,struct iguana_info *coin,char *
             {
                 if ( (rawtx= jstr(retjson,"rawtx")) != 0 && (vins= jobj(retjson,"vins")) != 0 )
                 {
-                    if ( (signedtx= iguana_signrawtx(myinfo,coin,&signedtxid,&completed,vins,rawtx,0,0)) != 0 )
+                    if ( (signedtx= iguana_signrawtx(myinfo,coin,coin->blocks.hwmchain.height,&signedtxid,&completed,vins,rawtx,0,0)) != 0 )
                     {
                         iguana_unspentslock(myinfo,coin,vins);
                         retjson = cJSON_CreateObject();
                         jaddbits256(retjson,"result",signedtxid);
                         jaddstr(retjson,"signedtx",signedtx);
                         jadd(retjson,"complete",completed != 0 ? jtrue() : jfalse());
-                        if ( 1 )
+                        if ( completed != 0 )
                         {
                             senttxid = iguana_sendrawtransaction(myinfo,coin,signedtx);
                             if ( bits256_cmp(senttxid,signedtxid) == 0 )
@@ -501,6 +501,7 @@ char *sendtoaddress(struct supernet_info *myinfo,struct iguana_info *coin,char *
                 free_json(retjson);
             }
             free(retstr);
+            return(clonestr("{\"error\":\"couldnt create rawtx\"}"));
         } else return(clonestr("{\"error\":\"couldnt create rawtx\"}"));
     }
     return(clonestr("{\"error\":\"need address and amount\"}"));
@@ -818,7 +819,7 @@ HASH_AND_INT(bitcoinrpc,getrawtransaction,txid,verbose)
             if ( verbose != 0 )
             {
                 extraspace = calloc(1,extralen);
-                txobj = bitcoin_hex2json(coin,&checktxid,0,txbytes,extraspace,extralen,0,0,0);
+                txobj = bitcoin_hex2json(coin,coin->blocks.hwmchain.height,&checktxid,0,txbytes,extraspace,extralen,0,0,0);
                 free(extraspace);
                 free(txbytes);
                 if ( txobj != 0 )
@@ -875,7 +876,7 @@ int64_t iguana_lockval(int32_t finalized,int64_t locktime)
     return(lockval);
 }
 
-char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,char *rawtx,int32_t mempool,int32_t suppress_pubkeys)
+char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin,int32_t height,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,char *rawtx,int32_t mempool,int32_t suppress_pubkeys)
 {
     bits256 signedtxid,txid; struct iguana_msgvin vin; cJSON *log,*vins,*vouts,*txobj,*retjson; char *checkstr,*signedtx; int32_t finalized = 1,i,len,maxsize,numinputs,numoutputs,complete; struct vin_info *V; uint8_t *serialized,*serialized2; uint32_t sigsize,pubkeysize,p2shsize,suffixlen; int64_t inputsum,outputsum,lockval;
     retjson = cJSON_CreateObject();
@@ -885,7 +886,7 @@ char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin
         if ( (strlen(rawtx) & 1) != 0 )
             return(clonestr("{\"error\":\"rawtx hex has odd length\"}"));
         memset(msgtx,0,sizeof(*msgtx));
-        if ( (txobj= bitcoin_hex2json(coin,&msgtx->txid,msgtx,rawtx,extraspace,extralen,0,0,suppress_pubkeys)) != 0 )
+        if ( (txobj= bitcoin_hex2json(coin,coin->blocks.hwmchain.height,&msgtx->txid,msgtx,rawtx,extraspace,extralen,0,0,suppress_pubkeys)) != 0 )
         {
             //printf("txobj.(%s)\n",jprint(txobj,0));
             if ( (checkstr= bitcoin_json2hex(myinfo,coin,&txid,txobj,0)) != 0 )
@@ -900,7 +901,7 @@ char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin
                             break;
                     jaddnum(retjson,"mismatch position",i);
                     jadd(retjson,"origtx",txobj);
-                    if ( (txobj= bitcoin_hex2json(coin,&txid,msgtx,checkstr,extraspace,extralen,0,0,suppress_pubkeys)) != 0 )
+                    if ( (txobj= bitcoin_hex2json(coin,coin->blocks.hwmchain.height,&txid,msgtx,checkstr,extraspace,extralen,0,0,suppress_pubkeys)) != 0 )
                         jadd(retjson,"checktx",txobj);
                     free(checkstr);
                     return(jprint(retjson,1));
@@ -941,7 +942,7 @@ char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin
                     }
                 }
                 V[0].suppress_pubkeys = suppress_pubkeys;
-                if ( (complete= bitcoin_verifyvins(coin,&signedtxid,&signedtx,msgtx,serialized2,maxsize,V,1,0,suppress_pubkeys)) > 0 && signedtx != 0 )
+                if ( (complete= bitcoin_verifyvins(coin,height,&signedtxid,&signedtx,msgtx,serialized2,maxsize,V,1,0,suppress_pubkeys)) > 0 && signedtx != 0 )
                 {
                     msgtx->txid = signedtxid;
                     log = cJSON_CreateArray();
@@ -977,7 +978,7 @@ STRING_AND_INT(bitcoinrpc,validaterawtransaction,rawtx,suppress)
     {
         bits256 txid;
         rawtx = bitcoin_json2hex(myinfo,coin,&txid,txobj,0);
-        txobj = bitcoin_hex2json(coin,&txid,0,rawtx,extraspace,extralen,0,0,suppress);
+        txobj = bitcoin_hex2json(coin,coin->blocks.hwmchain.height,&txid,0,rawtx,extraspace,extralen,0,0,suppress);
         printf("RAWTX.(%s) -> (%s)\n",rawtx,jprint(txobj,0));
     }
     //retstr = iguana_validaterawtx(myinfo,coin,&msgtx,extraspace,extralen,rawtx,0,suppress);
@@ -995,7 +996,7 @@ STRING_AND_INT(bitcoinrpc,decoderawtransaction,rawtx,suppress)
         if ( (strlen(rawtx) & 1) != 0 )
             return(clonestr("{\"error\":\"rawtx hex has odd length\"}"));
         extraspace = calloc(1,extralen);
-        txobj = bitcoin_hex2json(coin,&txid,0,rawtx,extraspace,extralen,0,0,suppress);
+        txobj = bitcoin_hex2json(coin,coin->blocks.hwmchain.height,&txid,0,rawtx,extraspace,extralen,0,0,suppress);
         free(extraspace);
         //char str[65]; printf("got txid.(%s)\n",bits256_str(str,txid));
     }
diff --git a/iguana/iguana_ramchain.c b/iguana/iguana_ramchain.c
index 646a074ba..c3c8e03f7 100755
--- a/iguana/iguana_ramchain.c
+++ b/iguana/iguana_ramchain.c
@@ -2482,7 +2482,6 @@ int32_t iguana_bundlesaveHT(struct supernet_info *myinfo,struct iguana_info *coi
         }
         if ( (block= bp->blocks[bundlei]) == 0 || bits256_nonz(block->RO.hash2) == 0 || memcmp(block->RO.hash2.bytes,bp->hashes[bundlei].bytes,sizeof(bits256)) != 0 || bits256_cmp(block->RO.prev_block,prevhash2) != 0 ) // block != iguana_blockfind("bundlesave",coin,block->RO.hash2)
         {
-            printf("block.%p error vs %p\n",block,iguana_blockfind("bundlesaveerr",coin,block->RO.hash2));
             break;
         }
         fpipbits = block->fpipbits, fpos = block->fpos;
diff --git a/iguana/iguana_scripts.c b/iguana/iguana_scripts.c
index 2602d6b63..3c0445703 100755
--- a/iguana/iguana_scripts.c
+++ b/iguana/iguana_scripts.c
@@ -477,7 +477,7 @@ int32_t bitcoin_scriptget(struct iguana_info *coin,int32_t *hashtypep,uint32_t *
     vp->type = spendtype;
     if ( j == 0 )
     {
-        *userdatalenp = len;
+        //*userdatalenp = len;
         vp->spendlen = len;
         return(vp->spendlen);
     }
diff --git a/iguana/iguana_sign.c b/iguana/iguana_sign.c
index 99f424e0a..266162aef 100755
--- a/iguana/iguana_sign.c
+++ b/iguana/iguana_sign.c
@@ -250,7 +250,7 @@ int32_t iguana_parsevinobj(struct supernet_info *myinfo,struct iguana_info *coin
             printf("null vinscript case\n");
             vin->vinscript = serialized;
             vin->vinscript[0] = 0;
-            vin->scriptlen = 0;
+            vin->scriptlen = 1;
         }
         for (i=0; i<n; i++)
         {
@@ -276,6 +276,7 @@ int32_t iguana_parsevinobj(struct supernet_info *myinfo,struct iguana_info *coin
     if ( userdata != 0 )
     {
         n = iguana_parsehexstr(&vin->userdata,&vin->userdatalen,V!=0?V->userdata:0,V!=0?&V->userdatalen:0,serialized,userdata);
+        printf("parsed userdata.%d\n",n);
         len += n, serialized += n;
     }
     //printf("len.%d: ",len);
@@ -383,7 +384,7 @@ cJSON *iguana_voutjson(struct iguana_info *coin,struct iguana_msgvout *vout,int3
     return(json);
 }
 
-bits256 bitcoin_sigtxid(struct iguana_info *coin,uint8_t *serialized,int32_t maxlen,struct iguana_msgtx *msgtx,int32_t vini,uint8_t *spendscript,int32_t spendlen,int32_t hashtype,char *vpnstr,int32_t suppress_pubkeys)
+bits256 bitcoin_sigtxid(struct iguana_info *coin,int32_t height,uint8_t *serialized,int32_t maxlen,struct iguana_msgtx *msgtx,int32_t vini,uint8_t *spendscript,int32_t spendlen,int32_t hashtype,char *vpnstr,int32_t suppress_pubkeys)
 {
     int32_t i,len; bits256 sigtxid,txid,revsigtxid; struct iguana_msgtx dest;
     dest = *msgtx;
@@ -408,9 +409,13 @@ bits256 bitcoin_sigtxid(struct iguana_info *coin,uint8_t *serialized,int32_t max
         dest.vins[i].p2shlen = 0;
         dest.vins[i].redeemscript = 0;
     }
-    len = iguana_rwmsgtx(coin,1,0,serialized,maxlen,&dest,&txid,vpnstr,0,0,0,suppress_pubkeys);
+    len = iguana_rwmsgtx(coin,height,1,0,serialized,maxlen,&dest,&txid,vpnstr,0,0,0,suppress_pubkeys);
     if ( len > 0 )
     {
+#ifdef BTC2_VERSION
+        if ( height >= BTC2_HARDFORK_HEIGHT )
+            hashtype |= (BTC2_MAGICBYTE << 24); // the 0xff can be any non-zero byte
+#endif
         len += iguana_rwnum(1,&serialized[len],sizeof(hashtype),&hashtype);
         revsigtxid = bits256_doublesha256(0,serialized,len);
         for (i=0; i<sizeof(revsigtxid); i++)
@@ -420,7 +425,7 @@ bits256 bitcoin_sigtxid(struct iguana_info *coin,uint8_t *serialized,int32_t max
     return(sigtxid);
 }
 
-int32_t iguana_rwmsgtx(struct iguana_info *coin,int32_t rwflag,cJSON *json,uint8_t *serialized,int32_t maxsize,struct iguana_msgtx *msg,bits256 *txidp,char *vpnstr,uint8_t *extraspace,int32_t extralen,cJSON *vins,int32_t suppress_pubkeys)
+int32_t iguana_rwmsgtx(struct iguana_info *coin,int32_t height,int32_t rwflag,cJSON *json,uint8_t *serialized,int32_t maxsize,struct iguana_msgtx *msg,bits256 *txidp,char *vpnstr,uint8_t *extraspace,int32_t extralen,cJSON *vins,int32_t suppress_pubkeys)
 {
     int32_t i,n,len = 0,extraused=0; uint8_t *txstart = serialized,*sigser=0; char txidstr[65]; cJSON *array=0; bits256 sigtxid;
     len += iguana_rwnum(rwflag,&serialized[len],sizeof(msg->version),&msg->version);
@@ -473,7 +478,7 @@ int32_t iguana_rwmsgtx(struct iguana_info *coin,int32_t rwflag,cJSON *json,uint8
             {
                 //set spendscript here
                 printf("vini.%d spendscript.%p spendlen.%d (%s)\n",i,msg->vins[i].spendscript,msg->vins[i].spendlen,jprint(jitem(vins,i),0));
-                sigtxid = bitcoin_sigtxid(coin,sigser,maxsize*2,msg,i,msg->vins[i].spendscript,msg->vins[i].spendlen,SIGHASH_ALL,vpnstr,suppress_pubkeys);
+                sigtxid = bitcoin_sigtxid(coin,height,sigser,maxsize*2,msg,i,msg->vins[i].spendscript,msg->vins[i].spendlen,SIGHASH_ALL,vpnstr,suppress_pubkeys);
             } else memset(sigtxid.bytes,0,sizeof(sigtxid));
             jaddi(array,iguana_vinjson(coin,&msg->vins[i],sigtxid));
         }
@@ -603,7 +608,7 @@ bits256 iguana_parsetxobj(struct supernet_info *myinfo,struct iguana_info *coin,
         {
             for (i=0; i<msg->tx_out; i++)
             {
-                printf("parsevout.%d starts %d\n",i,len);
+                //printf("parsevout.%d starts %d\n",i,len);
                 len += iguana_parsevoutobj(coin,&serialized[len],maxsize,&msg->vouts[i],jitem(array,i));
             }
         }
@@ -628,13 +633,13 @@ bits256 iguana_parsetxobj(struct supernet_info *myinfo,struct iguana_info *coin,
     return(txid);
 }
 
-char *iguana_rawtxbytes(struct iguana_info *coin,cJSON *json,struct iguana_msgtx *msgtx,int32_t suppress_pubkeys)
+char *iguana_rawtxbytes(struct iguana_info *coin,int32_t height,cJSON *json,struct iguana_msgtx *msgtx,int32_t suppress_pubkeys)
 {
     int32_t n; char *txbytes = 0,vpnstr[64]; uint8_t *serialized;
     serialized = malloc(IGUANA_MAXPACKETSIZE);
     vpnstr[0] = 0;
     //char str[65]; printf("%d of %d: %s\n",i,msg.txn_count,bits256_str(str,tx.txid));
-    if ( (n= iguana_rwmsgtx(coin,1,json,serialized,IGUANA_MAXPACKETSIZE,msgtx,&msgtx->txid,vpnstr,0,0,0,suppress_pubkeys)) > 0 )
+    if ( (n= iguana_rwmsgtx(coin,height,1,json,serialized,IGUANA_MAXPACKETSIZE,msgtx,&msgtx->txid,vpnstr,0,0,0,suppress_pubkeys)) > 0 )
     {
         txbytes = malloc(n*2+1);
         init_hexbytes_noT(txbytes,serialized,n);
@@ -662,7 +667,7 @@ char *bitcoin_json2hex(struct supernet_info *myinfo,struct iguana_info *coin,bit
     return(txbytes);
 }
 
-cJSON *bitcoin_data2json(struct iguana_info *coin,bits256 *txidp,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,uint8_t *serialized,int32_t len,cJSON *vins,int32_t suppress_pubkeys)
+cJSON *bitcoin_data2json(struct iguana_info *coin,int32_t height,bits256 *txidp,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,uint8_t *serialized,int32_t len,cJSON *vins,int32_t suppress_pubkeys)
 {
     int32_t n; char vpnstr[64]; struct iguana_msgtx M; cJSON *txobj;
     if ( coin == 0 || serialized == 0 )
@@ -673,7 +678,7 @@ cJSON *bitcoin_data2json(struct iguana_info *coin,bits256 *txidp,struct iguana_m
     memset(msgtx,0,sizeof(M));
     vpnstr[0] = 0;
     memset(txidp,0,sizeof(*txidp));
-    if ( (n= iguana_rwmsgtx(coin,0,txobj,serialized,len,msgtx,txidp,vpnstr,extraspace,extralen,vins,suppress_pubkeys)) <= 0 )
+    if ( (n= iguana_rwmsgtx(coin,height,0,txobj,serialized,len,msgtx,txidp,vpnstr,extraspace,extralen,vins,suppress_pubkeys)) <= 0 )
     {
         printf("errortxobj.(%s)\n",jprint(txobj,0));
         free_json(txobj);
@@ -684,7 +689,7 @@ cJSON *bitcoin_data2json(struct iguana_info *coin,bits256 *txidp,struct iguana_m
     return(txobj);
 }
 
-cJSON *bitcoin_hex2json(struct iguana_info *coin,bits256 *txidp,struct iguana_msgtx *msgtx,char *txbytes,uint8_t *extraspace,int32_t extralen,uint8_t *origserialized,cJSON *vins,int32_t suppress_pubkeys)
+cJSON *bitcoin_hex2json(struct iguana_info *coin,int32_t height,bits256 *txidp,struct iguana_msgtx *msgtx,char *txbytes,uint8_t *extraspace,int32_t extralen,uint8_t *origserialized,cJSON *vins,int32_t suppress_pubkeys)
 {
     int32_t len; uint8_t *serialized; cJSON *txobj;
     if ( coin == 0 || txbytes == 0 )
@@ -693,7 +698,7 @@ cJSON *bitcoin_hex2json(struct iguana_info *coin,bits256 *txidp,struct iguana_ms
     if ( (serialized= origserialized) == 0 )
         serialized = calloc(1,len);
     decode_hex(serialized,len,txbytes);
-    txobj = bitcoin_data2json(coin,txidp,msgtx,extraspace,extralen,serialized,len,vins,suppress_pubkeys);
+    txobj = bitcoin_data2json(coin,height,txidp,msgtx,extraspace,extralen,serialized,len,vins,suppress_pubkeys);
     if ( serialized != origserialized )
         free(serialized);
     return(txobj);
@@ -756,7 +761,7 @@ int32_t iguana_msgtx_Vset(struct iguana_info *coin,uint8_t *serialized,int32_t m
     return(len);
 }
 
-int32_t bitcoin_verifyvins(struct iguana_info *coin,bits256 *signedtxidp,char **signedtx,struct iguana_msgtx *msgtx,uint8_t *serialized,int32_t maxlen,struct vin_info *V,int32_t sighash,int32_t signtx,int32_t suppress_pubkeys)
+int32_t bitcoin_verifyvins(struct iguana_info *coin,int32_t height,bits256 *signedtxidp,char **signedtx,struct iguana_msgtx *msgtx,uint8_t *serialized,int32_t maxlen,struct vin_info *V,int32_t sighash,int32_t signtx,int32_t suppress_pubkeys)
 {
     bits256 sigtxid; uint8_t *sig; struct vin_info *vp; char vpnstr[64]; int32_t complete=0,plen,j,vini=0,flag=0,siglen,numvouts,numsigs;
     numvouts = msgtx->tx_out;
@@ -765,7 +770,7 @@ int32_t bitcoin_verifyvins(struct iguana_info *coin,bits256 *signedtxidp,char **
     memset(signedtxidp,0,sizeof(*signedtxidp));
     for (vini=0; vini<msgtx->tx_in; vini++)
     {
-        sigtxid = bitcoin_sigtxid(coin,serialized,maxlen,msgtx,vini,msgtx->vins[vini].spendscript,msgtx->vins[vini].spendlen,sighash,vpnstr,suppress_pubkeys);
+        sigtxid = bitcoin_sigtxid(coin,height,serialized,maxlen,msgtx,vini,msgtx->vins[vini].spendscript,msgtx->vins[vini].spendlen,sighash,vpnstr,suppress_pubkeys);
         if ( bits256_nonz(sigtxid) != 0 )
         {
             vp = &V[vini];
@@ -818,7 +823,7 @@ int32_t bitcoin_verifyvins(struct iguana_info *coin,bits256 *signedtxidp,char **
     }
     iguana_msgtx_Vset(coin,serialized,maxlen,msgtx,V);
     cJSON *txobj = cJSON_CreateObject();
-    *signedtx = iguana_rawtxbytes(coin,txobj,msgtx,suppress_pubkeys);
+    *signedtx = iguana_rawtxbytes(coin,height,txobj,msgtx,suppress_pubkeys);
     //printf("SIGNEDTX.(%s)\n",jprint(txobj,1));
     *signedtxidp = msgtx->txid;
     return(complete);
@@ -847,7 +852,7 @@ int32_t iguana_vininfo_create(struct supernet_info *myinfo,struct iguana_info *c
                     msgtx->vins[i].spendlen = vp->spendlen;
                     vp->hashtype = iguana_vinscriptparse(coin,vp,&sigsize,&pubkeysize,&p2shsize,&userdatalen,vp->spendscript,vp->spendlen);
                     vp->userdatalen = userdatalen;
-                    printf("V %.8f (%s) spendscript.[%d]\n",dstr(vp->amount),vp->coinaddr,vp->spendlen);
+                    printf("V %.8f (%s) spendscript.[%d] userdatalen.%d\n",dstr(vp->amount),vp->coinaddr,vp->spendlen,userdatalen);
                 }
             }
             else
@@ -1119,7 +1124,7 @@ int32_t iguana_interpreter(struct iguana_info *coin,cJSON *logarray,int64_t nLoc
 
 P2SH_SPENDAPI(iguana,spendmsig,activecoin,vintxid,vinvout,destaddress,destamount,destaddress2,destamount2,M,N,pubA,wifA,pubB,wifB,pubC,wifC)
 {
-    struct vin_info V; uint8_t p2sh_rmd160[20],serialized[2096],spendscript[32],pubkeys[3][65],*pubkeyptrs[3]; int32_t spendlen;
+    struct vin_info V; uint8_t p2sh_rmd160[20],serialized[2096],spendscript[32],pubkeys[3][65],*pubkeyptrs[3]; int32_t spendlen,height = 0;
     char msigaddr[64],*retstr; cJSON *retjson,*txobj; struct iguana_info *active;
     bits256 signedtxid; char *signedtx;
     struct iguana_msgtx msgtx;
@@ -1164,7 +1169,7 @@ P2SH_SPENDAPI(iguana,spendmsig,activecoin,vintxid,vinvout,destaddress,destamount
     bitcoin_txinput(active,txobj,vintxid,vinvout,0xffffffff,spendscript,spendlen,V.p2shscript,V.p2shlen,pubkeyptrs,N);
     bitcoin_address(msigaddr,active->chain->p2shtype,V.p2shscript,V.p2shlen);
     retjson = cJSON_CreateObject();
-    if ( bitcoin_verifyvins(active,&signedtxid,&signedtx,&msgtx,serialized,sizeof(serialized),&V,SIGHASH_ALL,1,V.suppress_pubkeys) == 0 )
+    if ( bitcoin_verifyvins(active,height,&signedtxid,&signedtx,&msgtx,serialized,sizeof(serialized),&V,SIGHASH_ALL,1,V.suppress_pubkeys) == 0 )
     {
         jaddstr(retjson,"result","msigtx");
         if ( signedtx != 0 )
@@ -1175,7 +1180,7 @@ P2SH_SPENDAPI(iguana,spendmsig,activecoin,vintxid,vinvout,destaddress,destamount
     return(jprint(retjson,1));
 }
 
-int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_info *coin,struct iguana_msgtx *msgtx,char **signedtxp,bits256 *signedtxidp,struct vin_info *V,int32_t numinputs,char *rawtx,cJSON *vins,cJSON *privkeys)
+int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_info *coin,int32_t height,struct iguana_msgtx *msgtx,char **signedtxp,bits256 *signedtxidp,struct vin_info *V,int32_t numinputs,char *rawtx,cJSON *vins,cJSON *privkeys)
 {
     uint8_t *serialized,*serialized2,*serialized3,*serialized4,*extraspace; int32_t finalized,i,len,n,maxsize,complete = 0,extralen = 65536; char *checkstr,*privkeystr,*signedtx = 0; bits256 privkey,txid; cJSON *item; cJSON *txobj = 0;
     maxsize = 1000000;
@@ -1188,7 +1193,7 @@ int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_inf
         extraspace = malloc(extralen);
         memset(msgtx,0,sizeof(*msgtx));
         decode_hex(serialized,len,rawtx);
-        if ( (txobj= bitcoin_hex2json(coin,&txid,msgtx,rawtx,extraspace,extralen,serialized4,vins,V->suppress_pubkeys)) != 0 )
+        if ( (txobj= bitcoin_hex2json(coin,height,&txid,msgtx,rawtx,extraspace,extralen,serialized4,vins,V->suppress_pubkeys)) != 0 )
         {
             if ( vins != 0 )
                 printf("vins.(%s)\n",jprint(vins,0));
@@ -1213,7 +1218,7 @@ int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_inf
         if ( (numinputs= cJSON_GetArraySize(vins)) > 0 )
         {
             memset(msgtx,0,sizeof(*msgtx));
-            if ( iguana_rwmsgtx(coin,0,0,serialized,maxsize,msgtx,&txid,"",extraspace,65536,vins,V->suppress_pubkeys) > 0 && numinputs == msgtx->tx_in )
+            if ( iguana_rwmsgtx(coin,height,0,0,serialized,maxsize,msgtx,&txid,"",extraspace,65536,vins,V->suppress_pubkeys) > 0 && numinputs == msgtx->tx_in )
             {
                 if ( (n= cJSON_GetArraySize(privkeys)) > 0 )
                 {
@@ -1228,7 +1233,7 @@ int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_inf
                     }
                 }
                 finalized = iguana_vininfo_create(myinfo,coin,serialized2,maxsize,msgtx,vins,numinputs,V);
-                if ( (complete= bitcoin_verifyvins(coin,signedtxidp,&signedtx,msgtx,serialized3,maxsize,V,SIGHASH_ALL,1,V->suppress_pubkeys)) > 0 && signedtx != 0 )
+                if ( (complete= bitcoin_verifyvins(coin,height,signedtxidp,&signedtx,msgtx,serialized3,maxsize,V,SIGHASH_ALL,1,V->suppress_pubkeys)) > 0 && signedtx != 0 )
                 {
                     int32_t tmp;
                     if ( (tmp= iguana_interpreter(coin,0,iguana_lockval(finalized,jint(txobj,"locktime")),V,numinputs)) < 0 )
@@ -1265,7 +1270,7 @@ STRING_ARRAY_OBJ_STRING(bitcoinrpc,signrawtransaction,rawtx,vins,privkeys,sighas
     {
         V = calloc(numinputs,sizeof(*V));
         memset(&msgtx,0,sizeof(msgtx));
-        if ( (complete= iguana_signrawtransaction(myinfo,coin,&msgtx,&signedtx,&signedtxid,V,numinputs,rawtx,vins,privkeys)) >= 0 )
+        if ( (complete= iguana_signrawtransaction(myinfo,coin,coin->blocks.hwmchain.height,&msgtx,&signedtx,&signedtxid,V,numinputs,rawtx,vins,privkeys)) >= 0 )
         {
             if ( signedtx != 0 )
             {
diff --git a/iguana/tests/decoderawtransaction b/iguana/tests/decoderawtransaction
index beca415db..34b1b6a8f 100755
--- a/iguana/tests/decoderawtransaction
+++ b/iguana/tests/decoderawtransaction
@@ -1 +1 @@
-curl --url "http://127.0.0.1:7778" --data "{\"coin\":\"BTC\",\"method\":\"decoderawtransaction\",\"params\":[\"0100000001a9c0e4255aaf9f0ff89525c87bcb14c3b423637f1920d158ff94d0f0603f665a000000008a012025c6a612a7477796ccc138eadcbfbf29abbce43bf89376a914b7128d2ee837cf034c67e30a2c0e3e0181f7b9669bb688ac0100000001a9c0e4255aaf9f0ff89525c87bcb14c3b423637f1920d158ff94d0f0603f665a000000008a012025c6a612a7477796ccc138eadcbfbf29abbce43bf89376a914b7128d2ee837cf034c6735b19ab3739d8afdac68ffffffff0117380000000000001976a914b7128d2ee837cf03e30a2c0e3e0181f7b9669bb688ac00000000\", 1]}"
+curl --url "http://127.0.0.1:7778" --data "{\"coin\":\"BTCD\",\"method\":\"decoderawtransaction\",\"params\":[\"010000008497a857019cb804dc1c70059d45c8d135bd630b2be9fcd27dd6c9d5510aec0d25e43f734b01000000000000000002a0860100000000001976a914a3a0ee4fc2455ed9e1d57ef87dac45513f8a544188ac10bf1c05000000001976a91421e112f4211cbc612bc5f3de86acf0017b88b67d88ac00000000\", 1]}"
diff --git a/iguana/tests/sendtoaddress b/iguana/tests/sendtoaddress
index 0f066f88d..254feab04 100755
--- a/iguana/tests/sendtoaddress
+++ b/iguana/tests/sendtoaddress
@@ -1,2 +1,2 @@
-curl --url "http://127.0.0.1:7778" --data "{\"method\":\"sendtoaddress\",\"params\":[\"RQCP1TcfevTQU35ZftPNx2TZpB9ZkSZQ3S\", 1.0001, \"testcomment\", \"sendcomment\"]}"
+curl --url "http://127.0.0.1:7778" --data "{\"method\":\"sendtoaddress\",\"params\":[\"RQCP1TcfevTQU35ZftPNx2TZpB9ZkSZQ3S\", 0.001, \"testcomment\", \"sendcomment\"]}"
 
diff --git a/includes/iguana_funcs.h b/includes/iguana_funcs.h
index 8c5e3a7b8..ba3b727e5 100755
--- a/includes/iguana_funcs.h
+++ b/includes/iguana_funcs.h
@@ -281,12 +281,12 @@ bits256 iguana_chaingenesis(char *symbol,uint8_t zcash,uint8_t auxpow,int32_t (*
 int32_t iguana_send_ConnectTo(struct iguana_info *coin,struct iguana_peer *addr);
 cJSON *iguana_txjson(struct iguana_info *coin,struct iguana_txid *tx,int32_t height,struct vin_info *V);
 char *iguana_txscan(struct iguana_info *coin,cJSON *json,uint8_t *data,int32_t recvlen,bits256 txid);
-char *iguana_rawtxbytes(struct iguana_info *coin,cJSON *json,struct iguana_msgtx *msgtx,int32_t suppress_pubkeys);
+char *iguana_rawtxbytes(struct iguana_info *coin,int32_t height,cJSON *json,struct iguana_msgtx *msgtx,int32_t suppress_pubkeys);
 int32_t iguana_send_VPNversion(struct iguana_info *coin,struct iguana_peer *addr,uint64_t myservices);
 void exchanges777_init(struct supernet_info *myinfo,cJSON *exchanges,int32_t sleepflag);
 int32_t iguana_rwvout(int32_t rwflag,struct OS_memspace *mem,uint8_t *serialized,struct iguana_msgvout *msg);
 int32_t iguana_rwvin(int32_t rwflag,struct OS_memspace *mem,uint8_t *serialized,struct iguana_msgvin *msg);
-int32_t iguana_rwmsgtx(struct iguana_info *coin,int32_t rwflag,cJSON *json,uint8_t *serialized,int32_t maxsize,struct iguana_msgtx *msg,bits256 *txidp,char *vpnstr,uint8_t *extraspace,int32_t extralen,cJSON *vins,int32_t suppress_pubkeys);
+int32_t iguana_rwmsgtx(struct iguana_info *coin,int32_t height,int32_t rwflag,cJSON *json,uint8_t *serialized,int32_t maxsize,struct iguana_msgtx *msg,bits256 *txidp,char *vpnstr,uint8_t *extraspace,int32_t extralen,cJSON *vins,int32_t suppress_pubkeys);
 int32_t iguana_ramtxbytes(struct iguana_info *coin,uint8_t *serialized,int32_t maxlen,bits256 *txidp,struct iguana_txid *tx,int32_t height,struct iguana_msgvin *vins,struct iguana_msgvout *vouts,int32_t validatesigs);
 cJSON *bitcoin_txtest(struct iguana_info *coin,char *rawtxstr,bits256 txid);
 cJSON *iguana_blockjson(struct iguana_info *coin,struct iguana_block *block,int32_t txidsflag);
@@ -297,7 +297,7 @@ int32_t iguana_rwblockhdr(int32_t rwflag,uint8_t zcash,uint8_t *serialized,struc
 void calc_rmd160_sha256(uint8_t rmd160[20],uint8_t *data,int32_t datalen);
 int32_t bitcoin_checklocktimeverify(uint8_t *script,int32_t n,uint32_t locktime);
 struct bitcoin_spend *iguana_spendset(struct supernet_info *myinfo,struct iguana_info *coin,int64_t amount,int64_t txfee,cJSON *addresses,int32_t minconf);
-cJSON *bitcoin_hex2json(struct iguana_info *coin,bits256 *txidp,struct iguana_msgtx *msgtx,char *txbytes,uint8_t *extrapace,int32_t extralen,uint8_t *serialized,cJSON *vins,int32_t suppress_pubkeys);
+cJSON *bitcoin_hex2json(struct iguana_info *coin,int32_t height,bits256 *txidp,struct iguana_msgtx *msgtx,char *txbytes,uint8_t *extrapace,int32_t extralen,uint8_t *serialized,cJSON *vins,int32_t suppress_pubkeys);
 cJSON *iguana_signtx(struct supernet_info *myinfo,struct iguana_info *coin,bits256 *txidp,char **signedtxp,struct bitcoin_spend *spend,cJSON *txobj,cJSON *vins);
 void iguana_addscript(struct iguana_info *coin,cJSON *dest,uint8_t *script,int32_t scriptlen,char *fieldname);
 bits256 iguana_genesis(struct iguana_info *coin,struct iguana_chain *chain);
@@ -425,8 +425,8 @@ struct iguana_txid *iguana_blocktx(struct iguana_info *coin,struct iguana_txid *
 cJSON *iguana_p2shjson(struct supernet_info *myinfo,struct iguana_info *coin,cJSON *retjson,struct iguana_waddress *waddr);
 char *setaccount(struct supernet_info *myinfo,struct iguana_info *coin,struct iguana_waddress **waddrp,char *account,char *coinaddr,char *redeemScript);
 char *iguana_APIrequest(struct iguana_info *coin,bits256 blockhash,bits256 txid,int32_t seconds);
-int32_t bitcoin_verifyvins(struct iguana_info *coin,bits256 *signedtxidp,char **signedtx,struct iguana_msgtx *msgtx,uint8_t *serialized,int32_t maxsize,struct vin_info *V,int32_t sighash,int32_t signtx,int32_t suppress_pubkeys);
-char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,char *rawtx,int32_t mempool,int32_t suppress_pubkeys);
+int32_t bitcoin_verifyvins(struct iguana_info *coin,int32_t height,bits256 *signedtxidp,char **signedtx,struct iguana_msgtx *msgtx,uint8_t *serialized,int32_t maxsize,struct vin_info *V,int32_t sighash,int32_t signtx,int32_t suppress_pubkeys);
+char *iguana_validaterawtx(struct supernet_info *myinfo,struct iguana_info *coin,int32_t height,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,char *rawtx,int32_t mempool,int32_t suppress_pubkeys);
 int64_t iguana_fastfindcreate(struct iguana_info *coin);
 int32_t bitcoin_validaddress(struct iguana_info *coin,char *coinaddr);
 int32_t iguana_volatileupdate(struct iguana_info *coin,int32_t incremental,struct iguana_ramchain *spentchain,int16_t spent_hdrsi,uint32_t spent_unspentind,uint32_t spent_pkind,uint64_t spent_value,uint32_t spendind,uint32_t fromheight);
@@ -444,7 +444,7 @@ int32_t bitcoin_assembler(struct iguana_info *coin,cJSON *logarray,uint8_t scrip
 cJSON *iguana_spendasm(struct iguana_info *coin,uint8_t *spendscript,int32_t spendlen);
 int64_t iguana_unspentavail(struct supernet_info *myinfo,struct iguana_info *coin,uint64_t hdrsi_unspendind,int32_t minconf,int32_t maxconf);
 struct iguana_utxo iguana_utxofind(struct iguana_info *coin,int16_t spent_hdrsi,uint32_t spent_unspentind,int32_t *RTspendflagp,int32_t lockflag);
-int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_info *coin,struct iguana_msgtx *msgtx,char **signedtxp,bits256 *signedtxidp,struct vin_info *V,int32_t numinputs,char *rawtx,cJSON *vins,cJSON *privkeys);
+int32_t iguana_signrawtransaction(struct supernet_info *myinfo,struct iguana_info *coin,int32_t height,struct iguana_msgtx *msgtx,char **signedtxp,bits256 *signedtxidp,struct vin_info *V,int32_t numinputs,char *rawtx,cJSON *vins,cJSON *privkeys);
 cJSON *iguana_privkeysjson(struct supernet_info *myinfo,struct iguana_info *coin,cJSON *vins);
 char *iguana_inputaddress(struct supernet_info *myinfo,struct iguana_info *coin,char *coinaddr,int16_t *spent_hdrsip,uint32_t *unspentindp,cJSON *vinobj);
 struct iguana_waddress *iguana_getaccountaddress(struct supernet_info *myinfo,struct iguana_info *coin,cJSON *json,char *remoteaddr,char *coinaddr,char *account);
@@ -472,12 +472,12 @@ void iguana_unspentslock(struct supernet_info *myinfo,struct iguana_info *coin,c
 char *iguana_calcrawtx(struct supernet_info *myinfo,struct iguana_info *coin,cJSON **vinsp,cJSON *txobj,int64_t satoshis,char *changeaddr,int64_t txfee,cJSON *addresses,int32_t minconf,uint8_t *opreturn,int32_t oplen,int64_t burnamount,char *remoteaddr);
 int64_t datachain_update(struct supernet_info *myinfo,int32_t ordered,struct iguana_info *coin,uint32_t timestamp,struct iguana_bundle *bp,uint8_t rmd160[20],int64_t crypto777_payment,uint8_t type,int32_t height,uint64_t hdrsi_unspentind,int64_t burned,uint32_t fileid,uint64_t scriptpos,int32_t scriptlen,bits256 txid,int32_t vout);
 void datachain_update_spend(struct supernet_info *myinfo,int32_t ordered,struct iguana_info *coin,uint32_t timestamp,struct iguana_bundle *bp,int32_t height,bits256 txid,int32_t vout,uint8_t rmd160[20],int64_t value);
-cJSON *bitcoin_data2json(struct iguana_info *coin,bits256 *txidp,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,uint8_t *serialized,int32_t len,cJSON *vins,int32_t suppress_pubkeys);
+cJSON *bitcoin_data2json(struct iguana_info *coin,int32_t height,bits256 *txidp,struct iguana_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,uint8_t *serialized,int32_t len,cJSON *vins,int32_t suppress_pubkeys);
 int32_t iguana_unspentind2txid(struct supernet_info *myinfo,struct iguana_info *coin,int32_t *spentheightp,bits256 *txidp,int32_t *voutp,int16_t hdrsi,uint32_t unspentind);
 int32_t iguana_unspent_check(struct supernet_info *myinfo,struct iguana_info *coin,uint16_t hdrsi,uint32_t unspentind);
 char *basilisk_bitcoinrawtx(struct supernet_info *myinfo,struct iguana_info *coin,char *remoteaddr,uint32_t basilisktag,int32_t timeoutmillis,cJSON *valsobj);
 
-char *iguana_signrawtx(struct supernet_info *myinfo,struct iguana_info *coin,bits256 *signedtxidp,int32_t *completedp,cJSON *vins,char *rawtx,cJSON *privkey,struct vin_info *V);
+char *iguana_signrawtx(struct supernet_info *myinfo,struct iguana_info *coin,int32_t height,bits256 *signedtxidp,int32_t *completedp,cJSON *vins,char *rawtx,cJSON *privkey,struct vin_info *V);
 bits256 scrypt_blockhash(const void *input);
 bits256 iguana_calcblockhash(char *symbol,int32_t (*hashalgo)(uint8_t *blockhashp,uint8_t *serialized,int32_t len),uint8_t *serialized,int32_t len);
 struct bitcoin_eventitem *instantdex_event(char *cmdstr,cJSON *argjson,cJSON *newjson,uint8_t *serdata,int32_t serdatalen);